A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland
Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurre...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
McCarthy, I. D. [verfasserIn] Fraser, D. [verfasserIn] Waldron, S. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK; Malden, USA: Blackwell Science Ltd ; 2004 |
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| Schlagwörter: |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2004 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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| Übergeordnetes Werk: |
In: Journal of fish biology - Oxford [u.a.] : Wiley-Blackwell, 1969, 65(2004), 5, Seite 0 |
| Übergeordnetes Werk: |
volume:65 ; year:2004 ; number:5 ; pages:0 |
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| DOI / URN: |
10.1111/j.0022-1112.2004.00526.x |
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| 520 | |a Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. | ||
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10.1111/j.0022-1112.2004.00526.x doi (DE-627)NLEJ243244657 DE-627 ger DE-627 rakwb McCarthy, I. D. verfasserin aut A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland Oxford, UK; Malden, USA Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| diet shift Fraser, D. verfasserin aut Waldron, S. verfasserin aut Adams, C. E. oth In Journal of fish biology Oxford [u.a.] : Wiley-Blackwell, 1969 65(2004), 5, Seite 0 Online-Ressource (DE-627)NLEJ24392741X (DE-600)1471958-7 1095-8649 nnns volume:65 year:2004 number:5 pages:0 http://dx.doi.org/10.1111/j.0022-1112.2004.00526.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 65 2004 5 0 |
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10.1111/j.0022-1112.2004.00526.x doi (DE-627)NLEJ243244657 DE-627 ger DE-627 rakwb McCarthy, I. D. verfasserin aut A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland Oxford, UK; Malden, USA Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| diet shift Fraser, D. verfasserin aut Waldron, S. verfasserin aut Adams, C. E. oth In Journal of fish biology Oxford [u.a.] : Wiley-Blackwell, 1969 65(2004), 5, Seite 0 Online-Ressource (DE-627)NLEJ24392741X (DE-600)1471958-7 1095-8649 nnns volume:65 year:2004 number:5 pages:0 http://dx.doi.org/10.1111/j.0022-1112.2004.00526.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 65 2004 5 0 |
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10.1111/j.0022-1112.2004.00526.x doi (DE-627)NLEJ243244657 DE-627 ger DE-627 rakwb McCarthy, I. D. verfasserin aut A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland Oxford, UK; Malden, USA Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| diet shift Fraser, D. verfasserin aut Waldron, S. verfasserin aut Adams, C. E. oth In Journal of fish biology Oxford [u.a.] : Wiley-Blackwell, 1969 65(2004), 5, Seite 0 Online-Ressource (DE-627)NLEJ24392741X (DE-600)1471958-7 1095-8649 nnns volume:65 year:2004 number:5 pages:0 http://dx.doi.org/10.1111/j.0022-1112.2004.00526.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 65 2004 5 0 |
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10.1111/j.0022-1112.2004.00526.x doi (DE-627)NLEJ243244657 DE-627 ger DE-627 rakwb McCarthy, I. D. verfasserin aut A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland Oxford, UK; Malden, USA Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| diet shift Fraser, D. verfasserin aut Waldron, S. verfasserin aut Adams, C. E. oth In Journal of fish biology Oxford [u.a.] : Wiley-Blackwell, 1969 65(2004), 5, Seite 0 Online-Ressource (DE-627)NLEJ24392741X (DE-600)1471958-7 1095-8649 nnns volume:65 year:2004 number:5 pages:0 http://dx.doi.org/10.1111/j.0022-1112.2004.00526.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 65 2004 5 0 |
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10.1111/j.0022-1112.2004.00526.x doi (DE-627)NLEJ243244657 DE-627 ger DE-627 rakwb McCarthy, I. D. verfasserin aut A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland Oxford, UK; Malden, USA Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| diet shift Fraser, D. verfasserin aut Waldron, S. verfasserin aut Adams, C. E. oth In Journal of fish biology Oxford [u.a.] : Wiley-Blackwell, 1969 65(2004), 5, Seite 0 Online-Ressource (DE-627)NLEJ24392741X (DE-600)1471958-7 1095-8649 nnns volume:65 year:2004 number:5 pages:0 http://dx.doi.org/10.1111/j.0022-1112.2004.00526.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 65 2004 5 0 |
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A stable isotope analysis of trophic polymorphism among Arctic charr from Loch Ericht, Scotland |
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Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. |
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Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. |
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Analysis of nitrogen stable isotope ratios (δ15N) in white muscle and liver shows temporal stability in the trophic levels at which the two sympatric morphs of Arctic charr Salvelinus alpinus from Loch Ericht feed. The results confirm an ontogenetic dietary switch to a more piscivorous diet, occurred in all individuals of one of the morphs, above a size threshold of 16·5 cm fork length, indicating that this occurs at a high frequency in this population and that once made, the return to feeding to a lower trophic level is infrequent. |
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